Press-Type Fixing Assembly

ABSTRACT

A press-type fixing assembly for fixing a heat dissipator includes a seat body and a pressing body. The seat body has a bottom plate and a side plate that are connected with each other to form a L-lettered shape. Further, the bottom plate is provided with a positioning hole, and the side plate is provided with a through hole. The pressing body has a pressing plate. The lower end face of the pressing plate is connected to a post. The post correspondingly penetrates through the positioning hole, and the center of the post has a vertical partition. One end of the post has an engaging portion. With the post of the pressing body being pressed into the positioning hole of the seat body, the post can penetrate through the bottom plate via the elastic deformation of the partition. Finally, the post is engaged with the fixing hole of the connected substrate, thereby to rapidly fix the position of the heat dissipator.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a heat-dissipating structure, and in particular to an assembly for fixing a heat-dissipating device.

2. Description of Prior Art

With the increasing demand for compactness, electronic devices are continuously miniaturized, which directly results in the demand for effective heat dissipation. Therefore, in order to improve the heat-dissipating efficiency of the electronic devices, it is a most common technical measure to directly mount a heat-dissipating assembly on a heat-generating element. Especially, a heat-dissipating structure is provided in which a plurality of heat-dissipating pieces having high heat-dissipating efficiency is brought into direct contact with the heat-generating element via a heat-conducting medium, thereby to improve the heat-dissipating performance of the heat-generating element. In view of the above, it is an important issue to firmly connect the heat-generating element with the heat-dissipating structure having heat-dissipating pieces.

In prior art, a most common way is to mount a substrate within the heat-dissipating structure on the heat-generating element. Further, heat-conducting glue is applied to the contacting surfaces of the substrate and the heat-generating element, so that the substrate and the heat-generating element can be firmly adhered to each other for conducting heat smoothly. However, the electronic device having the heat-dissipating structure may be inevitably collided due to conveyance or other reasons. As a result, the heat-conducting glue acting as the connecting interference between the substrate of the heat-dissipating structure and the heat-generating element will be deviated or displaced, which greatly affects the heat-dissipating efficiency.

The later conventional art attempts to use an additional element to assist the positioning of the heat dissipator and the heat-generating element. A common way is to use a fixing rod or other pressing elements. Further, a locking element such as screw is connected into a screw hole provided on the substrate of the heat-generating element, thereby to generate a downward force to fix the positions of the heat dissipator and the heat-generating element. As a result, both of them may not be deviated by external forces to further affect the heat-dissipating effect thereof.

There are various kinds of heat dissipators available in the market and each of them is different in specification. Further, the connecting means and the mounting positions between the heat dissipator and the substrate are also different. Even, the forms of the locking elements are not the same. Especially, in the heat dissipator fixed by a fixing rod, it is necessary to use a tool to assemble or detach the heat dissipator. Alternatively, since the position of the screw hole may be different in various kinds of substrates, it causes some trouble and inconvenience to the user during the assembly of the heat dissipator.

SUMMARY OF THE INVENTION

In view of the above drawbacks, the present invention is to provide a press-type fixing assembly for rapidly positioning and connecting the heat dissipator with the heat-generating element. Then, an engaging means between a seat body and a pressing body is connected to a fixing hole originally provided on the substrate. With the above arrangement, it is suitable for the fixing holes at different positions. Further, the accurate positioning and rapid detachment can be achieved without any tool.

In order to achieve the above objects, the present invention provides a press-type fixing assembly comprising a seat body and a pressing body. The seat body has a bottom plate and a side plate that are connected with each other to form a L-lettered shape. Further, the bottom plate is provided with a positioning hole, and the side plate is provided with a through hole. The pressing body has a pressing plate. The lower end face of the pressing plate is connected to a post. The post correspondingly penetrates through the positioning hole, and the center of the post has a vertical partition. One end of the post has a locking portion. With the post of the pressing body being pressed into the positioning hole of the seat body, the post can penetrate through the bottom plate via the elastic deformation of the partition. Finally, the post is engaged with the fixing hole of the connected substrate, thereby to rapidly fix the relative position between the heat dissipator and the substrate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded schematic view showing the assembly of the present invention;

FIG. 2 is a schematic view (I) showing the operation of the present invention;

FIG. 3 is a schematic view (II) showing the operation of the present invention; and

FIG. 4 is a schematic view showing the structure of the post in another embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

With reference to FIG. 1, it is an exploded view showing the assembly of the present invention. The fixing assembly of the present invention comprises a seat body 1 and a pressing body 2. The seat body 1 has a bottom plate 11 and a side plate 12. The bottom plate 11 and the side plate 12 are integrally formed together with a L-lettered side view. The bottom plate 11 is provided with a positioning hole 111. The side plate 12 is provided with a semi-circular through hole 121. Further, the pressing body 2 has a pressing plate 21 and a post 22. The pressing plate 21 and the post 22 are integrally formed into a T-lettered shape. The post 22 is formed into a cylindrical shape to correspond to a positioning hole 111 of the seat body 1. The center of the post 22 is provided with a vertical partition 221 for partitioning the post 22 into two parts, so that the post 22 can be compressed to have a ductile space for elastic deformation. The end of the post 22 has an engaging portion 222. The engaging portion 222 can be an inverted hook or a semicircular piece (inverted hook in the present embodiment). The diameter of the engaging portion 222 is larger than that of the positioning hole 111 of the seat body 1. Further, the post 22 can be formed into a polygonal shape. The post 22 in FIG. 4 is shown as a tetragonal post. The body of the post 22 is provided with at least one penetrating hole 223 (two in the present embodiment), so that the post 22 can be compressed to have a ductile space for elastic deformation.

With reference to FIG. 2, it is a schematic view showing the operation of the present invention. It can be seen that, after a heat dissipator 3 abuts against a heat-generating element 5 provided on a substrate 4, a pressing rod 6 is used to position and press the heat dissipator 3. Further, both ends of the pressing rod 6 are provided with a hook 61, respectively. The hook 61 is used to penetrate the through hole 121 of the seat body 1. Then, the positioning hole 111 of the seat body 1 is aligned with to the fixing hole 41 of the substrate 4. Finally, the post 22 of the pressing body 2 correspondingly penetrates into the positioning hole 13 and the fixing hole 41. Therefore, the post 22 is compressed and deformed until the engaging portion 222 of the post 22 completely penetrates through another surface of the substrate 4 and gets engaged therewith. Further, when the engaging portion 2 is pressed, the pressing rod 6 is pulled downwardly until the engaging portion 222 penetrates through another surface of the substrate 4, thereby to fix the position of the heat dissipator without any deviation.

With reference to FIG. 3, it is a schematic view showing another operation of the present invention. It can be seen that two diagonal ends of the heat dissipator 3 are provided with a hook 61 a, respectively. The hook 61 a penetrates into the through hole 121 of the seat body 1. With the post 22 of the pressing body 2 penetrating into the positioning hole 111, the hook 61 a of the heat dissipator 3 can be pulled downwardly. Then, the post also penetrates into the fixing hole 41 of the substrate 1 until the engaging portion 222 of the post 22 is engaged with the substrate 4. In this way, the position of the heat dissipator 3 can be fixed.

Although the present invention has been described with reference to the foregoing preferred embodiments, it will be understood that the invention is not limited to the details thereof. Various equivalent variations and modifications can still be occurred to those skilled in this art in view of the teachings of the present invention. Thus, all such variations and equivalent modifications are also embraced within the scope of the invention as defined in the appended claims. 

1. A press-type fixing assembly for connecting to a pressing rod and being engaged with a fixing hole of a substrate, comprising: a seat body having a bottom plate, one side of the bottom plate connected to a side plate, the bottom plate having a positioning hole, the side plate having a through hole for connecting to the pressing rod; and a pressing body having a pressing plate, a lower surface of the pressing plate having a post, the post correspondingly penetrating into the positioning hole of the seat body and engaged with the fixing hole of the substrate.
 2. The press-type fixing assembly according to claim 1, wherein the seat body is formed into a L-lettered shape.
 3. The press-type fixing assembly according to claim 1, wherein the pressing body is formed into a T-lettered shape.
 4. The press-type fixing assembly according to claim 1, wherein the post has a partition thereon.
 5. The press-type fixing assembly according to claim 1, wherein the post is provided with at least one penetrating hole.
 6. The press-type fixing assembly according to claim 1, wherein the end of the post further has an engaging portion.
 7. The press-type fixing assembly according to claim 1, wherein the post is formed into a cylindrical shape.
 8. The press-type fixing assembly according to claim 1, wherein the post is a polygonal post. 